# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=56

[Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md)

**Page:** 57

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## [Problems with JOIN node](https://discourse.nodered.org/t/problems-with-join-node/94860)

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**Author:** [@Ceejay](https://discourse.nodered.org/u/Ceejay)\
**Replies:** 3\
**Last updated:** [28 January 2025 23:05 UTC](https://discourse.nodered.org/t/problems-with-join-node/94860 "2025-01-28T23:05:19Z")

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I’m having a lot of trouble getting a JOIN node to work properly. My application involves two systems: an ESP32 development board , with OV2640 camera, which periodically takes a jpeg image; and an RPi (with Node Red in…

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## [Connecting to MSSQL error](https://discourse.nodered.org/t/connecting-to-mssql-error/94964)

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**Author:** [@rbmgf7](https://discourse.nodered.org/u/rbmgf7)\
**Replies:** 2\
**Last updated:** [28 January 2025 20:58 UTC](https://discourse.nodered.org/t/connecting-to-mssql-error/94964 "2025-01-28T20:58:48Z")

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I'm trying to connect NR to our companies MSSQL server. I've been trying to work with the database team but we can't seem to get it to work. I used my Microsoft Authentication for my account and the DB team made a…

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## [Issue with flows.nodered not updating](https://discourse.nodered.org/t/issue-with-flows-nodered-not-updating/94938)

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**Author:** [@Supergiovane](https://discourse.nodered.org/u/Supergiovane)\
**Replies:** 7\
**Last updated:** [28 January 2025 16:58 UTC](https://discourse.nodered.org/t/issue-with-flows-nodered-not-updating/94938 "2025-01-28T16:58:35Z")

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Hi @knolleary Sorry for stalking you, but i’ve an issue with my node node-red-contrib-knx-ultimate (node) - Node-RED In Node-Red, i cannot see the updated version of it. I tried to re-publish and force update a couple…

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## [UIBuilder updating multiple clients](https://discourse.nodered.org/t/uibuilder-updating-multiple-clients/94748)

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**Author:** [@drshoemake](https://discourse.nodered.org/u/drshoemake)\
**Replies:** 2\
**Last updated:** [28 January 2025 16:31 UTC](https://discourse.nodered.org/t/uibuilder-updating-multiple-clients/94748 "2025-01-28T16:31:21Z")

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I'm new to Node-Red and UIBuilder. I'm building a kiosk system that has one page on two separate displays and I was wondering how I keep the displays synchronized. I have multiple buttons on a single page, but if I hit a…

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## [Filling an array with measurements](https://discourse.nodered.org/t/filling-an-array-with-measurements/94957)

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**Author:** [@HaVi](https://discourse.nodered.org/u/HaVi)\
**Replies:** 4\
**Last updated:** [28 January 2025 13:05 UTC](https://discourse.nodered.org/t/filling-an-array-with-measurements/94957 "2025-01-28T13:05:17Z")

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My weather station sends a payload with the precipitation measured over that period to NodeRed every 30 minutes. I would like to store those 48 measurements per day in the array precipitation(x), is that possible? And ca…

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## [Best way to send to mqtt client the state of my sensor](https://discourse.nodered.org/t/best-way-to-send-to-mqtt-client-the-state-of-my-sensor/94943)

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**Author:** [@yelkenli](https://discourse.nodered.org/u/yelkenli)\
**Replies:** 7\
**Last updated:** [28 January 2025 07:45 UTC](https://discourse.nodered.org/t/best-way-to-send-to-mqtt-client-the-state-of-my-sensor/94943 "2025-01-28T07:45:41Z")

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I have some GPIO sensors that node-red manages. Node-red sends via mqtt to another system that uses the sensor data. I would like to send one mqtt message when my node-red system starts up with the state of my sensor. A…

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## [Generator Detection of Start\\Stop](https://discourse.nodered.org/t/generator-detection-of-start-stop/94698)

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**Author:** [@rfg9585](https://discourse.nodered.org/u/rfg9585)\
**Replies:** 6\
**Last updated:** [28 January 2025 00:14 UTC](https://discourse.nodered.org/t/generator-detection-of-start-stop/94698 "2025-01-28T00:14:21Z")

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What is the best way to detect when a generator start\\stops as a feed to a multiplusII being used to charge batteries? Thanks!

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## [Installation of Node Red on Windows](https://discourse.nodered.org/t/installation-of-node-red-on-windows/94765)

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**Author:** [@Technogeek](https://discourse.nodered.org/u/Technogeek)\
**Replies:** 48\
**Last updated:** [27 January 2025 18:30 UTC](https://discourse.nodered.org/t/installation-of-node-red-on-windows/94765 "2025-01-27T18:30:07Z")

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Is there any kind of installation guide for Node Red on Windows 11 that actually works. Installing the Node.js package always stops and fails at the point where it's trying to run a setup.exe file I'm assuming for Visual…

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## [Serving dashboards on my local server to the internet](https://discourse.nodered.org/t/serving-dashboards-on-my-local-server-to-the-internet/94869)

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**Author:** [@88bit](https://discourse.nodered.org/u/88bit)\
**Replies:** 4\
**Last updated:** [27 January 2025 10:29 UTC](https://discourse.nodered.org/t/serving-dashboards-on-my-local-server-to-the-internet/94869 "2025-01-27T10:29:14Z")

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Hi all, I'm trying to help some friends with various monitoring needs. I'm using LoRaWAN devices connected to the TTN ( the Things network ). This is all working well and I'm using an MQTT input from the TTN to feed data…

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## [CoAP server not respecting node configuration port setting?](https://discourse.nodered.org/t/coap-server-not-respecting-node-configuration-port-setting/94643)

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**Author:** [@BerLech](https://discourse.nodered.org/u/BerLech)\
**Replies:** 2\
**Last updated:** [27 January 2025 09:09 UTC](https://discourse.nodered.org/t/coap-server-not-respecting-node-configuration-port-setting/94643 "2025-01-27T09:09:21Z")

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Hi, i searched quite a long in the forum and the wild Internet but without success, maybe I'm just blind, but... :wink: So I registered here and this is my first post. I have a node-red system running without any issue…

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## [Problems with Sensehat on Pi4 with Bookworm (Python3) and NR 4.0.3 - solved](https://discourse.nodered.org/t/problems-with-sensehat-on-pi4-with-bookworm-python3-and-nr-4-0-3-solved/94784)

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**Author:** [@Detlef9](https://discourse.nodered.org/u/Detlef9)\
**Replies:** 3\
**Last updated:** [26 January 2025 19:54 UTC](https://discourse.nodered.org/t/problems-with-sensehat-on-pi4-with-bookworm-python3-and-nr-4-0-3-solved/94784 "2025-01-26T19:54:32Z")

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I had the same problem as stefan24: Problems with Sensehat on Pi4 with Bookworm (Python3) and NR 4.0.3 The cancellation of the connection to the sense-hat node is caused by the warning message ‘DeprecationWarning: acti…

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## [Read CPU-Load of Linux-Device where Node-Red is installed on](https://discourse.nodered.org/t/read-cpu-load-of-linux-device-where-node-red-is-installed-on/94922)

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**Author:** [@Gawan](https://discourse.nodered.org/u/Gawan)\
**Replies:** 2\
**Last updated:** [26 January 2025 14:52 UTC](https://discourse.nodered.org/t/read-cpu-load-of-linux-device-where-node-red-is-installed-on/94922 "2025-01-26T14:52:41Z")

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Hi all, I have some performance issues to I would like to read the node-red server CPU load in Node-Red and show it somewhere in a Maintenance-Tab. I am not a linux person, but I managed to get this line if I simply se…

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## [How can I export from a nodered flow json file, the property "connection" of nodes with type "MSSQL"](https://discourse.nodered.org/t/how-can-i-export-from-a-nodered-flow-json-file-the-property-connection-of-nodes-with-type-mssql/94874)

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**Author:** [@dargento](https://discourse.nodered.org/u/dargento)\
**Replies:** 1\
**Last updated:** [26 January 2025 12:30 UTC](https://discourse.nodered.org/t/how-can-i-export-from-a-nodered-flow-json-file-the-property-connection-of-nodes-with-type-mssql/94874 "2025-01-26T12:30:03Z")

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I have an exported flows.json file of a NodeRed flow, and from that I want to parse the property "connection" of nodes with type "MSSQL". But I get always empty result. I have noticed when debugging the code that a prope…

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## [Function block to combine 2 analogue signals](https://discourse.nodered.org/t/function-block-to-combine-2-analogue-signals/94836)

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**Author:** [@SomersetSmartHome](https://discourse.nodered.org/u/SomersetSmartHome)\
**Replies:** 8\
**Last updated:** [26 January 2025 10:50 UTC](https://discourse.nodered.org/t/function-block-to-combine-2-analogue-signals/94836 "2025-01-26T10:50:29Z")

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I have a heating schedule with various set points during the day. I want the option to manually override the current set point if required. This value will come from a different device. I need a function block which ta…

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## [Query on Configuring \`node-red-contrib-modbus\` 5.43.0 for Specific Modbus Server Behavior](https://discourse.nodered.org/t/query-on-configuring-node-red-contrib-modbus-5-43-0-for-specific-modbus-server-behavior/94842)

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**Author:** [@fkroepfl](https://discourse.nodered.org/u/fkroepfl)\
**Replies:** 3\
**Last updated:** [25 January 2025 16:56 UTC](https://discourse.nodered.org/t/query-on-configuring-node-red-contrib-modbus-5-43-0-for-specific-modbus-server-behavior/94842 "2025-01-25T16:56:24Z")

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Dear Community, I am working with an energy meter Modbus server and need to replicate its specific behavior using the node-red-contrib-modbus 5.43.0 library. Below is an excerpt from the Modbus server specification for …

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## [Node Red TCP connection gives error (index a nil value) on MG400 Dobot](https://discourse.nodered.org/t/node-red-tcp-connection-gives-error-index-a-nil-value-on-mg400-dobot/94857)

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**Author:** [@Palmhoej](https://discourse.nodered.org/u/Palmhoej)\
**Replies:** 7\
**Last updated:** [25 January 2025 13:14 UTC](https://discourse.nodered.org/t/node-red-tcp-connection-gives-error-index-a-nil-value-on-mg400-dobot/94857 "2025-01-25T13:14:40Z")

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I have a dobot Mg400 with the following code: And then a simple flow in node red to inject strings using TCP connection (MG400 is the server): The code is executed as I would expect, robot does commands and I get…

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## [Any idea how can i access these 2 values inside the array?](https://discourse.nodered.org/t/any-idea-how-can-i-access-these-2-values-inside-the-array/94863)

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**Author:** [@zaid](https://discourse.nodered.org/u/zaid)\
**Replies:** 6\
**Last updated:** [25 January 2025 13:14 UTC](https://discourse.nodered.org/t/any-idea-how-can-i-access-these-2-values-inside-the-array/94863 "2025-01-25T13:14:05Z")

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## [Passing Msg Object to SubFlow](https://discourse.nodered.org/t/passing-msg-object-to-subflow/94905)

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**Author:** [@Phil89a](https://discourse.nodered.org/u/Phil89a)\
**Replies:** 4\
**Last updated:** [25 January 2025 10:01 UTC](https://discourse.nodered.org/t/passing-msg-object-to-subflow/94905 "2025-01-25T10:01:38Z")

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Hi - first a warning, I am new to Node-Red :grinning: What I am trying to do, is pass a Msg Object into a sub-flow. The contents of the object will change depending on its source, so I can't really map the data through…

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## [Splitting an object into two separate objects](https://discourse.nodered.org/t/splitting-an-object-into-two-separate-objects/94897)

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**Author:** [@iainmac](https://discourse.nodered.org/u/iainmac)\
**Replies:** 5\
**Last updated:** [25 January 2025 09:41 UTC](https://discourse.nodered.org/t/splitting-an-object-into-two-separate-objects/94897 "2025-01-25T09:41:11Z")

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Hi There, I have an object in my message payload (payload.Time) that I would like to split into two separate objects. I think the answer must be really simple with a function node I guess but I am just hitting a stumbli…

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## [Trying to install 'ffprobe'](https://discourse.nodered.org/t/trying-to-install-ffprobe/18287)

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**Author:** [@dynamicdave](https://discourse.nodered.org/u/dynamicdave)\
**Replies:** 3\
**Last updated:** [25 January 2025 07:40 UTC](https://discourse.nodered.org/t/trying-to-install-ffprobe/18287 "2025-01-25T07:40:52Z")

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I'm trying to install 'node-red-contrib-ffprobe' on a RPi-3B and keep getting this warning message. Has anyone managed to install this node and got it working? I'm hoping to collect the metadata from an audio track (fi…

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## [Node search enhancement](https://discourse.nodered.org/t/node-search-enhancement/94886)

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**Author:** [@Johnnybegoode](https://discourse.nodered.org/u/Johnnybegoode)\
**Replies:** 3\
**Last updated:** [25 January 2025 07:08 UTC](https://discourse.nodered.org/t/node-search-enhancement/94886 "2025-01-25T07:08:50Z")

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It would be nice also if a search could be done for all the occurrences of a specific node (by node type not the name given to it.). If it results that this already exists and I haven't found it I apologise, as I'm still…

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## [Mqtt to influxdb via node red](https://discourse.nodered.org/t/mqtt-to-influxdb-via-node-red/94856)

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**Author:** [@Pascal1993](https://discourse.nodered.org/u/Pascal1993)\
**Replies:** 3\
**Last updated:** [25 January 2025 03:55 UTC](https://discourse.nodered.org/t/mqtt-to-influxdb-via-node-red/94856 "2025-01-25T03:55:36Z")

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Hey there, after searching the internet for a while a tryin thing out I think it is time to look for some specific help for my problem. Me and some colleagues working on a school project where we put industrial sensors…

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## [Npm install - missing node modules](https://discourse.nodered.org/t/npm-install-missing-node-modules/94885)

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**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 1\
**Last updated:** [24 January 2025 20:35 UTC](https://discourse.nodered.org/t/npm-install-missing-node-modules/94885 "2025-01-24T20:35:59Z")

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I'm using a script to backup the .node-red directory MINUS the node\_modules directory & contents (due to it's size), and writing up the restore process for when I need it. Am I right in thinking that the process to rebu…

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## [I have a bit issue in uibuilder or might be my code is wrong](https://discourse.nodered.org/t/i-have-a-bit-issue-in-uibuilder-or-might-be-my-code-is-wrong/94827)

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**Author:** [@Jayeshpitale1](https://discourse.nodered.org/u/Jayeshpitale1)\
**Replies:** 13\
**Last updated:** [24 January 2025 16:29 UTC](https://discourse.nodered.org/t/i-have-a-bit-issue-in-uibuilder-or-might-be-my-code-is-wrong/94827 "2025-01-24T16:29:51Z")

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Hi there, I am trying to save chart settings to Json file and calling that chart setting also payload data to show in chart below is flow \[ { "id": "026d68caf9ab771a", "type": "group", "z"…

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## [General support for newbie](https://discourse.nodered.org/t/general-support-for-newbie/94823)

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**Author:** [@Egge](https://discourse.nodered.org/u/Egge)\
**Replies:** 16\
**Last updated:** [24 January 2025 13:30 UTC](https://discourse.nodered.org/t/general-support-for-newbie/94823 "2025-01-24T13:30:41Z")

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Hi for some time I'm using node-red and have managed to setup some flows. I watched the Node-RED Essentials Videos, downloades & tested many examples and analyzed the debug-output in detail. Unfortunately I'm still str…

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## [Inserting hexadecimal value into a buffer](https://discourse.nodered.org/t/inserting-hexadecimal-value-into-a-buffer/94864)

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**Author:** [@redhead](https://discourse.nodered.org/u/redhead)\
**Replies:** 2\
**Last updated:** [24 January 2025 09:54 UTC](https://discourse.nodered.org/t/inserting-hexadecimal-value-into-a-buffer/94864 "2025-01-24T09:54:08Z")

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Below is my function. It works for the most part, except I'm having an issue inserting the temperature in HEX to index 11 of the buffer. The issue is the value of index 11 does not change to the value I'm expecting. I ch…

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## [Get (external?) data from a website](https://discourse.nodered.org/t/get-external-data-from-a-website/94791)

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**Author:** [@micha53](https://discourse.nodered.org/u/micha53)\
**Replies:** 3\
**Last updated:** [24 January 2025 09:43 UTC](https://discourse.nodered.org/t/get-external-data-from-a-website/94791 "2025-01-24T09:43:03Z")

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I want to get data once a day from the table shown at this website: https://www.epexspot.com/en/market-results?market\_area=DE&auction=&delivery\_date=2025-01-19&underlying\_year=&modality=Continuous&sub\_modality=&technolo…

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## [UIBUILDER + VueJS Dynamic Floorplan - assistance needed](https://discourse.nodered.org/t/uibuilder-vuejs-dynamic-floorplan-assistance-needed/93875)

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**Author:** [@dtmike](https://discourse.nodered.org/u/dtmike)\
**Replies:** 23\
**Last updated:** [24 January 2025 05:55 UTC](https://discourse.nodered.org/t/uibuilder-vuejs-dynamic-floorplan-assistance-needed/93875 "2025-01-24T05:55:07Z")

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Hi Julian, and others Great and very interesting work! I'm new and just getting into nodered and uibuilder. My apologize if im raising an old topic but im totally lossed how to move further. Im thying to do a HMI pan…

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## [How to configure Node Red OAuth against Gitea IDP OAuth Provider - ID token not issued](https://discourse.nodered.org/t/how-to-configure-node-red-oauth-against-gitea-idp-oauth-provider-id-token-not-issued/94853)

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**Author:** [@mcook](https://discourse.nodered.org/u/mcook)\
**Replies:** 2\
**Last updated:** [23 January 2025 20:28 UTC](https://discourse.nodered.org/t/how-to-configure-node-red-oauth-against-gitea-idp-oauth-provider-id-token-not-issued/94853 "2025-01-23T20:28:25Z")

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I have tried to follow a couple of sites about enabling "adminAuth" section in Node Red settings.js for a self-hosted Gitea instance. I use this as an IDP for a variety of other self-hosted tools. I am stuck. The flow…

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## [Shelly integration & MQTT (via MacBook)](https://discourse.nodered.org/t/shelly-integration-mqtt-via-macbook/94672)

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**Author:** [@onit](https://discourse.nodered.org/u/onit)\
**Replies:** 11\
**Last updated:** [23 January 2025 17:21 UTC](https://discourse.nodered.org/t/shelly-integration-mqtt-via-macbook/94672 "2025-01-23T17:21:25Z")

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Hey Node RED community. I'm on a beginners level using Node RED to monitor and control Shelly devices. My setup at the moment is a Shelly Plus 1 which is connected to my network and I was setting up Node RED on my MacB…

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